单词 | stem |
释义 | Word Frequency stem 1(stɛm) noun 1. the main axis of a plant, which bears the leaves, axillary buds, and flowers and contains a hollow cylinder of vascular tissue 2. any similar subsidiary structure in such plants that bears a flower, fruit, or leaf 3. a corresponding structure in algae and fungi 4. any long slender part, such as the hollow part of a tobacco pipe that lies between the bit and the bowl, or the support between the base and the bowl of a wineglass, goblet, etc 5. a banana stalk with several bunches attached 6. the main line of descent or branch of a family 7. a round pin in some locks on which a socket in the end of a key fits and about which it rotates 8. any projecting feature of a component: a shank or cylindrical pin or rod, such as the pin that carries the winding knob on a watch 9. linguistics the form of a word that remains after removal of all inflectional affixes; the root of a word, esp as occurring together with a thematic element Compare root1 (sense 9)10. the main, usually vertical, stroke of a letter or of a musical note such as a minim 11. electronics the tubular glass section projecting from the base of a light bulb or electronic valve, on which the filament or electrodes are mounted 12. a. the main upright timber or structure at the bow of a vessel b. the very forward end of a vessel (esp in the phrase from stem to stern) verbWord forms: stems, stemming or stemmed 13. (intransitive; usually foll by from) to be derived; originate the instability stems from the war 14. (transitive) to make headway against (a tide, wind, etc) 15. (transitive) to remove or disengage the stem or stems from 16. (transitive) to supply (something) with a stem or stems Derived forms stemlike (ˈstemˌlike) adjective stemmer (ˈstemmer) noun Word origin Old English stemn; related to Old Norse stafn stem of a ship, German Stamm tribe, Gothic stōma basis, Latin stāmen threadWord Frequency stem 2(stɛm) verbWord forms: stems, stemming or stemmed 1. (transitive) to restrain or stop (the flow of something) by or as if by damming up 2. (transitive) to pack tightly or stop up 3. skiing to manoeuvre (a ski or skis), as in performing a stem noun 4. skiing a technique in which the heel of one ski or both skis is forced outwards from the direction of movement in order to slow down or turn Derived forms stemmer (ˈstemmer) noun Word origin C15 stemmen, from Old Norse stemma; related to Old Norse stamr blocked, stammering, German stemmen to prop; see stammerWord Frequency Stem(stɛm) noun die Stem Word origin C19: from Afrikaans, the callWord Frequency STEM(stɛm) education acronym for science, technology, engineering, and mathematics |
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